Joseph w



(Ne Model.)

J. W. JOHNSON.

HOT AIR REGISTER.

Patented Oct. 1, 1889.

wwmtov:

N. PETERS Fhma-uam n h r. Wnmn tmv. v.8.

UNITED STATES PATENT rEicE.

JOSEPH \V. J OHNSON, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNGR TO THE PHILADELPHIA HARDVARE AND MALLEABLE IRON WORKS, OF SAME PLACE.

HOT-AIR REGISTER.

SPECIFICATION forming part of Letters Patent No. 411,990, dated October 1, 1889. Application filed December 17, 1888. Serial No. 293,798 (No model.)

To all whom it may concern: by which means the plate and frame are se- Be it known that I, JOSEPH \V. JOHNSON, cured in position, said plate being perforated a citizen of the United States, residing atfor the tree passage of the hot air and formed Philadelphia, in the county of Philadelphia, with a transverse slot near its upper end.

5 State of Pennsylvania, have invented certain The opposite end walls of the frame 1 are new and useful Improvements in Hot- Air more abruptly inclined near their lower ends, Registers, of which the following is a specias at 6, and each wall near its lower edge is fication, reference being had therein to the provided with a series (in this instance three) accompanying drawings. of openings '7, and in the extreme edge of each [0 This invention has relation to hot-air regof said walls and slightly to one side of the isters, and more particularly to the means openings there is formed a series of recesses employed for operating the several leaves for S, the recesses agreeing in number with the controlling the heat emitted through the re openings. ister; and among the objects in view are to 9 represent the leaves or shutters of the 15 simplify the construction by reducing the register, which are of a length coincident 6 a number of parts usually employed, thus effectwith the distance from one end Wall to the ing a saving in the manufacture, and also to other of the frame 1, and are provided at render the construction more substantial and each of their ends with trunnions 10, which efficient. project therefrom, and are of a size adapted so The inventioh'consists in connecting each to loosely fit the perforations or openings 7' of the leaves or shutters to a single pivotallyand terminate just outside of said perforaconnected link and providing said link with a tions. protruding lug or actuating device, whereby The register herein illustrated is adapted the number of parts usually employed for for the accommodation of but three shutters;

25 operating the shutters is reduced to a minibut it is apparent that any number may be 7 5 monk-that is, a single device-which device accommodated by a corresponding enlargeis easily manufactured and placed in posiment of the proportions. tion and maintained in that position and Each of the shutters of the register is inagainst-displacementwithout the use of screws sorted or assembled in the frame 1 in a simi- 0 or other extraneous fastening devices. lar manner as are the others, and therefore a Other objects and advantages of the invendescription of the insertion of one shutter tion will appear in the following description, will suffice. and the novel features thereof will be partic- In placing the shutter in position within ularly pointed out in the claims. the frame 1 the shutter is introduced edge- 5 Referring to the drawings, Figure l reprewise or slightly inclined, so that the end of sents a plan of the upper portion of a registhe shutter registers with and is passed into 'ter constructed in accordance with my inventhe recess 8 adjacent thereto, and at the same tion. Fig. 2 is a similar view with the perfotime that it is inserted in the recess the rated or scroll face-plate removed, the shutters trunnion at that end of the shutter is passed 0 being illustrated as closed. Fig. 3 is a transinto the opening 7, formed for its reception, 9o verse section on the line am: of Fig. 3, and Fig. and it then remains to simply insert the op- 4: is longitudinal section on the line y y of posite' trunnion in the opposite opening 7.

Fig. 2'. The shutter is now moved longitudinally to Like numerals of reference indicate like the rear and revolved partly around until, as 45 parts in all the figures of the drawings. shown at the left of Fig. 2, it abuts against 5 1representstheregister frame, formed with the flange 11,.tormed on the lower edges of the usually-flared side and end walls and haV- the side walls of the frame 1. The shutter ing at two of its diagonally-opposite corners just inserted, which we will assume to be the threaded perforated lugs 2, into which screws one at the left, will now form a stop for the 5m 3 take after passing through the faceplate 4, shutter immediately to its right, and so on too sage of warm air.

throughout the series. From this it is apparent that the shutters are pivotally mounted in the frame 1 without the use of screws, and that the frame and shutter may be simply and easily cast and assembled with no handwork whatever.

At one end of each of the shutters and to one side of its trunnion there is formed a recess 12, the edge of which is provided with an end wall or flange 13, formed at a right angle to the shutter and provided with a short lug 14, projecting outwardly.

15 represents a transverse link having depending or laterally-projecting lugs 16, having elongated slots 16*, each adapted to take over one of the short lugs 14, formed on the shutters, and thus loosely connect the same. A curved flange 17 surmounts the link 15, and from the same there projects outwardly an operating-lug 18 of a length sufficient to project through the elongated slot 5, formed in the face-plate 2. The link 15 is also provided with a longitudinally-projecting abutting or stop arm 19, designed to come into contact with the side wall of the frame 1, and thereby prevent the further partial rotation of the shutters.

The link 15 is held loosely and 'removably in position with relation to the shutters by inwardly-projecting flanges 20, formed on the inner surface of that end wall next the link. By this construction it is apparent that by oscillating or moving the link to the left, as illustrated, the shutters will be partially rotated, and consequently opened for the pas- By a reverse movement it is also apparent that the register will be closed.

It will be not-iced that intermediate the openings 16*, formed in the link 15, there are formed on the lower edge of the link inwardly-disposed recesses, which recesses occur opposite the lateralflanges 20, formed on the end Wall of the plate 1. The object of these recesses is to permit of the introduction and withdrawal of said link, which is accomplished in the following manner: the link is introduced in a slanting position, so that the-recesses 21 receive the flanges 20. W hen in this position, the openings in the link are directly opposite the short lugs 14c of the shutters, and it only remains tobring the link to a vertical position, whereby the lugs are inserted into said openings. To withdraw the link, it is only necessary to reverse the above operation.

From the above description it is obvious that the parts may be assembled with great facility, that no screws or other extraneous devices are necessary to their operation, and that each of the parts may be easily and cheaply cast and assembled, and this without any hand-work except that necessary to the assemblage of the parts, whereby a great saving of time and labor is accomplished.

' Having described my invention and its op eration, what I claim is- 1. In a hot-air register, the combination, with a frame having opposite perforations in its end walls and inwardly-projecting flanges intermediate its sides, of shutters having trunnions mounted in the perforations and provided with short lugs at one of their ends, and a link perforated for and mounted on the short lugs, guided by the flanges, and formed with recesses intermediate its perforations, substantially as specified.

2. In a hotrair register, a frame having inclined end walls, opposite perforations formed therein,- and having recesses formed in the lower edge of one of the walls adjacent to each of the perforations therein, in combination with shutters having opposite end trunnions mounted. in the perforations, substan-,

tially as'specified. I

3. The frame 1, having the inclined end walls 6, perforated, as at 7, and recessed, as at 8, in combination with the shutters 9, having the trun'nions 10,-inse'rted in the recesses, and the short lugs 14, and the link 15, perforated, as at- 1'6*, having the intermediate recesses 2 1 and lug 19, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

1 JOSEPH WV. JOHNSON. Wit'ness'es:

WM. H. KENNEDY, JOHN H. B. TAYLOR, Jr. 

